| Property | Description |
|---|---|
| Parameter type | Integer |
| Default value | 1 |
| Modifiable | ALTER SYSTEM |
| Range of values | 1 to 20 |
| Basic | No |
| Real Application Clusters | Multiple instances can have different values. |
GLOBAL_TXN_PROCESSES specifies the initial number of GTXn background processes (GTX0, ... GTX9 and GTXa, ... GTXj) per instance to support global (XA) transactions in an Oracle RAC environment.
GLOBAL_TXN_PROCESSES is useful for systems that process global (XA) transactions heavily. You do not need to specify a value for this parameter since Oracle Database automatically determines the number of processes and autotunes them, as necessary. GTXn background processes are only seen in an Oracle RAC environment.